302 AVES: PASSERES. — XLVI. 
scurely marked, known by the blotch on the primaries. L, 5}. 
W. 238, J. 2}. E.N. Am.; an elegant species, common. (Lat., 
bluish.) 
ce. No white spot on primary quills. 
971. D. coronata (L.). YELLOW-RUMPED WARBLER. Bluish 
ash above, streaked with black ; white below with large black area 
on breast; crown patch, rump and sides of breast bright yellow, 
there being four definite yellow places; 9 and young brownish, 
with less yellow on breast and head. L. 58. W.3. T. 24. U.S, 
very abundant. The earliest migrant; represented W. of Rocky 
Mts. by D. auduboni Townsend, very similar but with the throat 
yellow. (Lat., crowned.) 
972. D. maculosa (Gmelin). Brack anD YELLOW WARBLER. 
Back black, with olive skirtings ; rump yellow; head clear ash; a 
white stripe behind eye ; sides of head black; under parts rich yel- 
low, with black streaks which are confluent on breast; crissum 
white; 9 similar, more olivaceous, with much less black. L. 5. 
W. 24. T.2}. E.N.Am.; a brilliant little bird, common. (Lat., 
spotty.) 
973. D. rara (Wilson). C®RULEAN WARBLER. Bright blue 
with black streaks; white below; breast and sides with streaks 
of slaty blue; 9 not streaked, greenish above, slightly yellowish be- 
low. L. 44. W. 24. T. 2. E.U.S., N. to L. Erie, common S$. W.; 
a dainty species. 
974. D. pennsylvanica (L.). CHESTNUT-SIDED WARBLER. 
Blackish above, much streaked with whitish and olive; crown clear 
yellow; black patch about eye; pure white below; a line of bright 
chestnut streaks along sides; wing patch yellowish (never clear 
white); 9 similar but with less chestnut and black. L. 5. W. 
T. 2}. E. N. Am., abundant, especially N.; very pretty. 
975. D. castanea (Wilson). Bay-BREASTED WARBLER. 
AutuMN WarsLer. Back ashy olive, streaked with black ; 
forehead and sides of head black, enclosing a large deep chestnut 
crown patch; chin, throat and sides chestnut, otherwise pale buffy 
below; 9% more olivaceous with less chestnut; young scarcely dis- 
tinguishable from striata, but the latter has crissum white instead 
of buffy; castanea is less streaked on sides. L.5. W.3. T. 2}. 
E. N. Am., not rare. (Lat., chestnut.) 
976. D. striata (Forster). BLAcK-PoLL WARBLER. Ashy 
olive, white below; almost everywhere streaked with black, the 
streaks below narrow; whole top of head pure black; 9 more oli- 
vaceous, slightly yellowish below; rather large. L. 58. W. 3. 
T. 24. E.N. Am.; the last to migrate, “bringing up the rear of 
the warbler-hosts; when the Black-Polls appear in force, the col- 
lecting season is about over.” (Coues.) (Lat., striped.) 
